vehicle seat

Abstract

Vehicle seat (1) with a support structure (4, 4c), with a seat surface (3), as well as with a backrest (2) and with at least one armrest arrangement (5, 5c) which is held on the support structure (4, 4c), wherein the armrest arrangement (5c) has a fastening unit (7c) which can be connected to or detached from a complementary receiving unit (8c) of the support structure (4, 4c) without tools, wherein the fastening unit (7c) and / or the receiving unit (8c) have a movable locking mechanism, and wherein an actuating element (6c) coupled to the locking mechanism is provided which moves the locking mechanism between a locking position and a release position, characterized in that the locking mechanism is force-limited and positively locking, and that an adjusting device for setting a retaining force of the locking mechanism in the locking position is provided.

Description

[0001] The invention relates to a vehicle seat according to the preamble of claim 1.

[0002] Such a vehicle seat is known from DE 10 2005 002 853 B3. The known vehicle seat has an armrest that can be installed or removed without tools. Installation or removal is achieved by twisting the armrest. Depending on the rotational position, the armrest bolt, which is locked in a bracket on the backrest of the vehicle seat, can be released. A torsion spring provides the locking mechanism.

[0003] Another vehicle seat is known from DE 10 2008 014 891 A1. In this case, the armrest is connected to a vehicle seat by a fastening device and an armrest fastening bolt. This bolt has a recess, a cylindrical section, and an eccentric section, and can be mounted to the fastening device without tools using a positive locking element.

[0004] German patent application DE 10 2004 003 251 A1 discloses a vehicle seat with a device for axially securing an armrest. Outwardly and inwardly projecting tongues serve as the locking mechanism. An armrest mounting bolt has a circumferential groove with a ramp-like slope. Axial locking or release is achieved by rotating the locking device relative to the groove.

[0005] German patent application DE 100 50 528 A1 describes a vehicle seat with an armrest. A detachable coupling between the vehicle seat and the armrest is released by a receiving element in the backrest of the vehicle seat and a locking element connected to the armrest. The locking element consists of a cylindrical pin with outwardly projecting, pin-like prongs and is actuated by a compression spring. The prongs correspond to centrally located recesses in the receiving element.

[0006] A vehicle seat is a common feature in minibuses, minivans, and vans. It is located within the vehicle interior and comprises a rigid support structure in both the seat and backrest areas, each covered by padding and a fabric covering to form the seat and backrest, respectively. An armrest assembly is attached to this support structure and may include a swiveling armrest body.

[0007] The object of the invention is to create a vehicle seat of the type mentioned above which enables improved variability of the vehicle seat using simple means.

[0008] This problem is solved by a vehicle seat with the features of claim 1. The armrest assembly has a fastening unit that can be connected to or detached from a complementary receiving unit of the support structure without tools. According to the invention, the at least one armrest assembly can be easily removed from or mounted on the vehicle seat without tools. This allows for quick and easy adjustments within a corresponding motor vehicle, i.e., in the vehicle interior, by a single operator. The invention is particularly advantageous for use in minibuses for passenger transport or in other passenger vehicles such as minivans or vans.The invention can be used in the same way for vehicle seats in rail vehicles or aircraft, as well as in other land vehicles such as trucks, camper vans, motorhomes, or large buses. Advantageously, the vehicle seat has an armrest arrangement on both sides, so that a person sitting in the vehicle seat can support themselves on the armrest on either the left or right side. Such a vehicle seat is also known as a captain's chair. If sufficient space is required in the vehicle interior, the respective armrest arrangement can be easily removed without tools according to the invention. Tool-free assembly or disassembly allows for quick and easy adaptation of the vehicle interior to the respective space requirements. Preferably, several vehicle seats according to the invention are installed in the interior of a corresponding motor vehicle.The supporting structure is advantageously a dimensionally stable metal construction, provided in both the seat cushion and backrest areas. The supporting structure is securely mounted within the vehicle interior and offers various adjustment options to adapt the seating position of the vehicle seat. Both the seat cushion and backrest areas of the supporting structure are covered with padding and a seat cover to provide appropriate seating and backrest support for a person seated in the vehicle. The backrest area of ​​the supporting structure also includes a headrest, which is padded and covered in the same manner as the seat cushion and backrest. The headrest can be integrated into the backrest or manufactured as a separate component and connected to the supporting structure in the backrest area.The armrest arrangement can be fixed or pivotable relative to the supporting structure.

[0009] According to the invention, the fastening unit or the receiving unit has a movable locking mechanism, and an actuating element coupled to the locking mechanism is provided, which moves the locking mechanism between a locking position and a release position. The locking mechanism has at least one mechanical locking element, which is movably mounted and interacts with a stationary locking profile of the locking mechanism. The at least one movable locking element is associated either with the fastening unit or the receiving unit. Conversely, the at least one complementary locking profile is associated with either the receiving unit or the fastening unit.

[0010] According to the invention, the locking mechanism is force-limited and positively engaged, and an adjusting device is provided for setting the retaining force of the locking mechanism. The force limitation of the positive engagement of the locking mechanism is particularly intended for the movement of the actuating element to move the locking mechanism from the locked position to the release position. The retaining force of the locking mechanism is adjustable by means of the adjusting device. This refers in particular to the retaining force of a movement of the actuating element when the actuating element moves the locking mechanism from the locked position to the release position. The actuating device allows adjustment of the actuating force required to move the locking mechanism to the release position by means of the actuating element.

[0011] In this embodiment of the invention, the locking mechanism features a bayonet locking function. The bayonet locking function provides a secure, positive-locking retention in the axial direction, i.e., in the assembly or disassembly direction. A rotatable actuating element is associated with this locking mechanism. The force limiting of the positive locking of the locking mechanism in the direction of rotation is provided to limit the rotatability of the actuating element.

[0012] In a further embodiment of the invention, the locking mechanism includes a spring-loaded locking device that holds the locking mechanism in the locked position with limited force. The locking device is preferably operatively connected to the adjusting device in order to allow the retaining force of the locking device to be set. The setting of the retaining force is preferably carried out by the manufacturer during the production of the vehicle seat.

[0013] Further advantages and features of the invention will become apparent from the claims and from the following description of preferred embodiments of the invention, which are illustrated with reference to the drawings. Fig. Figure 1 shows an embodiment of a vehicle seat according to the invention in perspective and schematic representation, Fig. 2 in detailed representation of a section of a vehicle seat according to Fig. 1 in a first embodiment, Fig. 3 the section of the vehicle seat after Fig. 2 in a sectional view, Fig. 4 and Fig. 5 perspective exploded views from different perspectives of the section of the vehicle seat according to the Fig. 2 and Fig. 3, Fig. 6 a partial area of ​​a second embodiment of a vehicle seat not belonging to the invention according to Fig. 1 similar Fig. 2, Fig. 7 a cross-sectional view of the sub-area according to Fig. 6, Fig. 8 the section of the vehicle seat according to the Fig. 6 and Fig. 7 in a perspective exploded view, Fig. 9 a partial area of ​​a third embodiment of a vehicle seat according to the invention Fig. 1, Fig. 10 a sectional view of the sub-area according to Fig. 9, Fig. 11 and Fig. 12 exploded views of the sub-area in two different perspectives according to the Fig. 9 and Fig. 10, Fig. 13 in perspective view a partial area of ​​a fourth embodiment of a vehicle seat not belonging to the invention, Fig. 14 a sectional view of the sub-area according to Fig. 13, Fig. 15 and Fig. 16 different perspectives of an exploded view of the sub-area according to the Fig. 13 and Fig. 14, Fig. 17 in perspective view a partial area of ​​a fifth embodiment of a vehicle seat not belonging to the invention according to Fig. 1, Fig. 18 a cross-section through the sub-area to Fig. 17 and Fig. 19 and Fig. 20 different perspectives of an exploded view of the sub-area according to the Fig. 17 and Fig. 18.

[0014] A vehicle seat 1 according to Fig. 1 is located in the interior of a motor vehicle in a manner not shown in detail. The vehicle seat 1 is fixedly mounted in the vehicle interior. The vehicle seat 1 has a support structure 4 which is in Fig. The support structure 4 is largely concealed by a backrest 2 and a seat surface 3. It is a dimensionally stable metal construction that stabilizes the seat surface 3 and the backrest 2. The support structure 4 is almost completely covered by corresponding padding and seat covers in the area of ​​the backrest 2 and the seat surface 3. The support structure 4 has adjustment mechanisms (not shown in detail) to allow the vehicle seat 1 to be adjusted longitudinally or rotated within the vehicle interior. Furthermore, the support structure 4 has at least one adjustment mechanism to allow the backrest 2 to be tilted relative to the seat surface 3.

[0015] As shown by the Fig. As can be seen in Figure 1, the vehicle seat 1 is also equipped with an armrest assembly 5, which is attached to a mounting unit of the support structure 4 in the area of ​​a side bolster of the backrest 2. The armrest assembly 5 can be rigidly attached to the support structure 4 in its assembled state or pivotally mounted relative to a transverse axis of the seat. As shown in Figure 1, the armrest assembly 5 can be rigidly attached to the support structure 4 or pivotally mounted relative to a transverse axis of the seat. Fig. Figure 1 shows only the left armrest assembly 5 as viewed from the seated position. However, the vehicle seat 1 can also be equipped with a further armrest assembly on the right side (as viewed from the seated position), which is mirror-symmetrical to the armrest assembly 5 and is held on the opposite right side bolster of the backrest 2 on the support structure 4, and is designed mirror-symmetrically identical to the armrest assembly 5 and the attachment of the armrest assembly 5 to the mounting unit of the support structure 4.

[0016] Based on the Fig. 2 to 20 are five different designs of vehicle seats 1 according to Fig. 1 shown, where based on the Fig. Figures 2 to 20 merely illustrate the respective differences in the area of ​​attachment and tool-free removal of the armrest assembly 5 relative to the supporting structure 4 of the vehicle seat 1. Accordingly, based on the Fig. Figures 2 to 20 of the respective embodiment of the vehicle seat 1 show only the corresponding receiving unit in the area of ​​the support structure 4 and a complementary fastening unit of the armrest assembly 5 for tool-free attachment and removal of the armrest assembly 5 relative to the support structure 4. The remaining functional sections and functional parts of the respective vehicle seat are identical to the vehicle seat 1 as shown in the Fig. 1 shown and described above. The different embodiments, as shown by the Fig. Figures 2 to 20 are shown and are provided with the same reference numerals for functionally corresponding parts and sections, with the addition of the letter a for the first embodiment, b for the second embodiment, c for the third embodiment, d for the fourth embodiment, and e for the fifth embodiment. To avoid repetition, reference is made to the general descriptions of the vehicle seat 1 according to [reference to relevant section / document]. Fig. 1 referred.

[0017] A vehicle seat according to the embodiment as described below Fig. Sections 2 to 5 have a support structure 4a to which a receiving unit 8a for holding the armrest assembly 5a is attached. The armrest assembly 5a has a fastening unit 7a, which interacts with the receiving unit 8a when the armrest assembly 5a is mounted. A locking mechanism is provided to secure the fastening unit 7a to the receiving unit 8a; this mechanism is described in more detail below. This locking mechanism can be moved from a locked position to a release position by an actuating element 6a, in which the armrest assembly 5a can be removed from the receiving unit 8a and from the support structure 4a. The following is based on the Fig. The 3 to 5 dashed axes represent an assembly and disassembly axis for the armrest arrangement 5a relative to the supporting structure 4a.

[0018] The actuating element 6a extends along the assembly and disassembly axis in the transverse direction of the seat through the armrest assembly 5a and is accessible in the area of ​​an outer side of the armrest assembly 5a in the manner of a push button ( Fig. 2 and Fig. 3) The actuating element 6a forms a longitudinally extended detent pin, which is cylindrical in design and has an annular groove 9 at its end region opposite the push button side. This groove is provided with conical chamfers facing each other and oriented in opposite directions in both axial directions. Two detent balls 10 are positioned in the annular groove 9 and are secured in position by an elastic ring in the annular groove 9 (not shown in detail). The actuating element 6a also has a return spring 13 designed as a helical compression spring, which is coaxially mounted on the detent pin of the actuating element 6a. The return spring 13 is supported on one side by an annular shoulder of the actuating element 6a and on the other side by an annular flange of a detent sleeve 11 of the receiving unit 8a.The locking sleeve 11 has two cylindrical locking recesses 12 on opposite sides, which are provided transversely to the assembly and disassembly axis in a sleeve casing of the locking sleeve 11. In the assembled state, the locking recesses 12 interact with the locking balls 10 to secure the armrest assembly 5a to the receiving unit 8a and thus to the support structure 4a. The receiving unit 8a, including the locking sleeve 11, is attached to the support structure 4a in a manner not shown in detail, in particular by welding or by bolting.

[0019] In the assembled state, the detent balls 10 are engaged in the detent recesses 12 of the detent sleeve 11, thereby positively securing the fastening unit 7a of the armrest assembly 5a to the receiving unit 8a of the support structure 4a. In this assembled position, the actuating element 6a is axially retracted by the return spring 13 to such an extent that a cylindrical end face of the detent bolt of the actuating element 6a holds the detent balls 10 radially pressed into the detent recesses 12 of the detent sleeve 11. As soon as the push button of the actuating element 6a is pressed against the return force of the return spring 13 towards the support structure 4a, the annular groove 9 is necessarily pressed to the radial height of the detent balls 10 and the detent recesses 12. This forces the detent balls 10 radially inwards by means of the elastic ring (not shown) and into the annular groove 9.This releases the detent balls 10 from the detent recesses 12, allowing the actuating element 6a, including the armrest assembly 5a, to be axially pulled out of the detent sleeve 11 of the receiving unit 8a. When the armrest assembly 5a is reinstalled, the detent pin of the actuating element 6a is inevitably inserted back into the detent sleeve 11. The restoring force of the return spring 13 pushes the actuating element 6a axially away from the support structure 4a, causing the detent balls 10 to move radially outwards, as they are forced outwards by the corresponding conical chamfer of the annular groove 9. This causes the detent balls 10 to re-engage in the detent recesses 12 of the detent sleeve 11. The fastening unit 7a is thus positively secured in the receiving unit 8a once again.

[0020] In the embodiment according to the Fig. The armrest assembly 5b is held on a receiving unit 8b of the support structure 4b by means of a fastening unit 7b at points 6 to 8. The armrest assembly 5b is secured to the support structure 4b by a locking mechanism, which can be released by an axial movement of an actuating element 6b along the assembly and disassembly axis.

[0021] Specifically, a plug-in wedge 14, designed to be rotationally asymmetrical relative to the assembly and disassembly axis, is attached to the armrest assembly 5b. The actuating element 6b is arranged in this wedge so as to be linearly displaceable. The actuating element 6b has a push button on the outside of the armrest assembly 5b. At an opposite end face, the actuating element 6b has a control wedge 15, which interacts with a locking wedge arrangement 20 to 22 as described below.

[0022] The receiving unit 8b, attached to the support structure 4b, has a plug-in receptacle 17 whose receiving area is designed to be rotationally asymmetrical to the plug-in wedge 14. The plug-in wedge 14 also has a locking groove 16 extending transversely to the assembly and disassembly axis and open upwards in the area of ​​one upper surface, into which a locking slide 22 of the locking slide assembly 20 to 22 engages in a form-fitting manner. The locking slide assembly 20 to 22 is mounted in a guide housing 18 so as to be linearly displaceable radially to the assembly and disassembly axis. A return spring 53 in the form of a helical compression spring exerts a permanent return force on the locking slide assembly 20 to 22 in the locking direction. The locking slide assembly has a connecting element 21 that positions the locking slide 22 axially relative to a control slide 20.The locking slide 22, the connecting element 21, and the control slide 20 are positioned parallel to one another in the axial direction of the assembly and disassembly axes and are connected to each other by screws to form a single unit, namely the locking slide assembly. The control slide 20 projects into the path of movement of the control wedge 15, whereas the locking slide 22, when assembled, engages in the locking groove 16 of the plug wedge 14. Both the locking slide 22 and the control slide 20 have chamfers on their lower end faces, which interact with corresponding end faces of the plug wedge 14 and the control wedge 15, respectively.

[0023] To mount the armrest assembly 5b, the plug-in wedge 14, together with the armrest assembly 5b, is simply inserted into the receiving area 17. This causes an end face of the plug-in wedge 14 to push the control slide 22 radially upwards towards the mounting and dismounting axis until the locking slide 22 engages in the locking groove 16. To dismount the armrest assembly 5b, the push button of the actuating element 6b is simply pressed axially inwards towards the support structure 4b. This causes the control wedge 15 to push the control slide 20 upwards. This releases the locking slide 22 from the locking groove 16, and the armrest assembly 5b can then be removed.

[0024] In the embodiment according to the Fig. From 9 to 12, the armrest assembly 5c is held on the support structure 4c by a fastening unit 7c, which interacts positively with a receiving unit 8c attached to the support structure 4c. A locking mechanism, described in more detail below, is provided to secure the fastening unit 7c to the receiving unit 8c. This locking mechanism is effective axially with respect to the assembly and disassembly axis. To move the locking mechanism from its locked position to its release position, an actuating element 6c is provided. This actuating element is linearly movable within the armrest assembly 5c, coaxial with respect to the assembly and disassembly axis, and has a push button that projects outwards from an outer surface of the armrest assembly 5c.

[0025] The fastening unit 7c has a rotationally asymmetrical plug-in wedge 25, which is attached to the armrest assembly 5c. Two locking profile bodies 24 are also attached to a front end face of the plug-in wedge 25 in the insertion direction. These locking profile bodies form two locking grooves extending vertically parallel to a radial on their opposite longitudinal sides. The two locking grooves are open towards the opposite sides of the plug-in wedge 25. A control wedge 23 is linearly movably guided in the plug-in wedge 25 and is rigidly connected to an end face of the actuating element 6c.

[0026] A receiving housing 26 is attached to the supporting structure 4c. This receiving housing is provided with a rotationally asymmetrical insertion area 27 that is complementary to the insertion wedge 25. Two elastically flexible locking rods 29 project into the insertion area 27. These rods are aligned parallel to each other in the vertical direction and are held in corresponding guides 28 of the receiving housing 26. An adjusting device for setting the respective bend of the locking rods 29 is also associated with the guides 28. The two locking rods 29 are designed as cylindrical spring steel wires. The adjusting device has a total of four adjusting screws 30, which are screwed into the receiving housing 26 from opposite outer sides and engage in the guides 28. By appropriately rotating the adjusting screws 30, the locking rods 29 can assume arcuate curves in a common radial plane, with the arcuate orientations being opposite to each other.Depending on the curvature setting using the adjusting device, a larger or smaller clearance between the locking bars 29 within the plug-in receiving area 27 can be achieved.

[0027] The control wedge 23 serves to push the two locking rods 29 apart in the radial plane when the push button of the actuating element 6c is actuated, thus releasing the plug-in wedge 25 in the area of ​​the locking grooves formed by the locking profile bodies 24 for removal. The clearance between the locking rods 29 defines the compressive force required to push the control wedge 23 between the locking rods 29 and thus spread the locking rods 29. The resulting retaining force formed by the locking rods 29 is set by the manufacturer when the receiving housing 26 is mounted on the support structure 4c.

[0028] To detach the armrest assembly 5c from the supporting structure 4c, according to Fig. 10. The push button of the actuating element 6c is simply pressed towards the support structure 4c, causing the control wedge 23 to spread the locking rods 29 apart. This releases the locking rods 29 from the locking grooves of the locking profile bodies 24 of the plug-in wedge 25, and the armrest assembly 5c can be easily removed. When the armrest assembly 5c is reinstalled, corresponding frontal chamfers of the locking profile bodies 24 of the plug-in wedge 25 simply push the locking rods 29 apart, so that the locking rods 29 easily engage in the locking grooves when the plug-in wedge 25 is inserted into the plug-in receiving area 27. Disassembly is then achieved by pressing the actuating element 6c again.

[0029] In the embodiment according to the Fig. In sections 13 to 16, an armrest assembly 5d is held on a receiving unit 8d of the support structure 4d by means of a fastening unit 7d. A locking mechanism with a bayonet fitting, as described in more detail below, is provided to secure the fastening unit 7d to the receiving unit 8d.

[0030] A cylindrical actuating element 32 is provided on the armrest assembly 5d. This element is attached to the armrest assembly 5d and, essentially by means of a rotational movement relative to the assembly and disassembly axis, causes the locking mechanism to engage or disengage. For the operator, the armrest assembly 5d, together with the actuating element 32, thus forms the interface for assembling or disassembling the armrest assembly 5d by means of a corresponding rotation. A bayonet locking element 31 is attached to an end face of the actuating element 32 facing away from the armrest assembly 5d. This bayonet locking element interacts with a bayonet locking receptacle 34 of a receiving housing 33, which is attached to the support structure 4d. The receiving housing 33 also includes a locking device 35, 36, comprising a pressure body holder 35 and several pressure bodies 36. The pressure body holder 35 is attached to the rear of the receiving housing 33.The pressure bodies 36 have cup-shaped housings, at the end faces of which locking balls partially protrude from the cup housings and are pressurized by helical compression springs. Thus, the locking balls are mounted in a spring-elastic manner parallel to the assembly and disassembly axis. The pressure bodies 36 are fastened in the pressure body holder 35 such that the locking balls project axially into the bayonet receptacle 34 of the receptacle housing 33 on the bottom side.As soon as the bayonet connector 31 is axially inserted into the bayonet receptacle 34 and the corresponding radially outwardly projecting bayonet lugs of the bayonet connector 31 engage in the complementary insertion grooves of the bayonet receptacle 34, the locking balls of the pressure bodies 36 are axially retracted as soon as the end face of the bayonet connector 31 contacts the bottom surface of the bayonet receptacle 34, which is formed by an end face of the pressure body holder 35. In this position, the bayonet connector 31, together with the actuating element 32 and the armrest assembly 5d, is rotated coaxially to the assembly and disassembly axis by a specific angle of rotation, thereby rotating the radially outwardly projecting bayonet locking lugs into the corresponding circumferentially extending locking contours of the bayonet receptacle 34.After the operator removes the axial pressure load, the locking balls of the pressure bodies 36 necessarily push the end face of the bayonet connector 31 axially back, thereby axially securing the bayonet connector 31 in the locking contour of the bayonet receiving space 34.

[0031] To release the armrest assembly 5d from this mounted position, the operator first presses the armrest assembly 5d, together with the actuating element 32 and the bayonet connector 31, axially inwards and then rotates it in the opposite direction by the aforementioned angle of rotation. This causes the locking balls to be pushed back axially, releasing the locking lugs of the bayonet connector 31 for the desired rotational movement. Subsequently, the locking balls of the pressure bodies 36 press the bayonet connector 31 almost automatically into the axial insertion grooves of the bayonet receptacle 34 in the removal direction, thus enabling easy axial removal of the armrest assembly 5d.

[0032] In the embodiment according to the Fig. In sections 17 to 20, the armrest assembly 5e has a fastening unit 7e which can be connected to a receiving unit 8e to secure the armrest assembly 5e to the support structure 4e. The receiving unit 8e is attached to the support structure 4e.

[0033] Specifically, the armrest assembly 5e comprises a bracket 39 to which a plug-in wedge 38 is attached. The plug-in wedge 38 has a rotationally asymmetrical outer plug-in contour. On its front end face, the plug-in wedge 38 has two metal pins 40 made of a magnetizable metal alloy, such as steel. The metal pins 40 are axially inserted into the front end face of the plug-in wedge 38 and secured within it. Both metal pins 40 protrude freely from the front end face. A disc-shaped actuating element 37 is rotatably mounted on the cylindrical bracket 39.The disc-shaped actuating element 37 can be rigidly connected to a pivotable armrest part of the armrest assembly 5e, wherein the pivotable armrest part is pivotably mounted about the assembly and disassembly axis relative to a fixed part of the armrest assembly 5e, to which the bracket 39 and the locking wedge 38 are attached. Based on the... Fig. 19 It can be seen that the disc-shaped actuating element 37 is provided on its end face facing the support structure 4e with wedge-shaped chamfers distributed around the circumference, which will be discussed in more detail below.

[0034] A receiving housing 41 of the receiving unit 8e is attached to the support structure 4e. The receiving housing 41 has a plug-in receptacle 42, which is designed to be rotationally asymmetrical, complementing the rotationally asymmetrical plug-in contour of the plug-in wedge 38. The plug-in receptacle area 42 is open towards the rear of the receiving housing 41. A magnetic retainer 43 is positioned in the rear of the receiving housing 41. This retainer consists of two superimposed permanent magnets that are attached to a carrier plate, in particular by adhesive bonding. The carrier plate is attached to the support structure 4e.

[0035] The receiving housing 41 also has a control contour in the area of ​​one of the front sides facing the armrest arrangement 5e, which surrounds the plug-in receiving area 42 in a circular manner and is provided with wedge-shaped chamfers that are complementary to the chamfers of the disc-shaped actuating ring 37.

[0036] To mount the armrest assembly 5e, the armrest assembly 5e is simply brought into contact with the receiving housing 41 and inserted into the plug-in receptacle 42 using the plug-in wedge 38. The disc-shaped actuating element 37 is rotated relative to the plug-in wedge 38 such that the complementary wedge-shaped chamfers of the actuating element 37 and the receiving housing 41 are spaced apart from each other in the circumferential direction. The magnetic force of the magnetic retainer 43 pulls the plug-in wedge 38 axially into the plug-in receptacle 42 and secures the plug-in wedge 38 in the insertion direction by the corresponding magnetic force. The magnetic force can act on the plug-in wedge 38 because the metal pins 40 in the front face of the plug-in wedge 38 are attracted by the permanent magnet.

[0037] In order to remove the armrest assembly 5e, the pivotable part of the armrest assembly 5e, together with the disc-shaped actuating element 37, is pivoted slightly in a simple manner (as shown in the illustration). Fig.20 upwards), which inevitably pushes the actuating element 37 axially away from the receiving housing 41 as soon as the wedge-shaped chamfers of the receiving housing 41 and the actuating element 37 meet. Since the actuating element 37 is rotatable relative to the locking wedge 38 and the bracket 39, but axially secured, the rotation of the actuating element 37 inevitably causes a slight axial displacement of the armrest assembly 5e and thus also of the locking wedge 38 axially outwards. This inevitably moves the metal pins 40 of the locking wedge 38 axially away from the permanent magnets of the magnetic retainer 43, thereby significantly reducing the magnetic force acting between the metal pins 40 and the permanent magnets. This reduction in magnetic force allows the operator to easily remove the armrest assembly 5e axially.

Claims

[1] Vehicle seat (1) comprising a support structure (4, 4c), a seat surface (3), a backrest (2), and at least one armrest assembly (5, 5c) held on the support structure (4, 4c), wherein the armrest assembly (5c) has a fastening unit (7c) that can be connected to or detached from a complementary receiving unit (8c) of the support structure (4, 4c) without tools, wherein the fastening unit (7c) and / or the receiving unit (8c) have a movable locking mechanism, and wherein an actuating element (6c) coupled to the locking mechanism is provided, which moves the locking mechanism between a locking position and a release position, characterized by that the locking mechanism is force-limited and positively locking, and that an adjusting device is provided for setting a retaining force of the locking mechanism in the locked position. [2] Vehicle seat (1) according to claim 1, characterized bythat the locking mechanism has a bayonet locking function. [3] Vehicle seat (1) according to claim 1 or 2, characterized by that the locking mechanism has a spring-loaded locking device that holds the locking mechanism in the locked position with limited force.

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